Estimation of electron temperature in transient glow discharge using ionization wave

Through ionization waves (striation), the transition of glow discharge to arc discharge was observed and relevant electron temperatures were determined experimentally. The velocity of ionization waves in a cathode flare increased from twofold to threefold that in an anode flare. It was assumed that the electron temperature of an anode flare was 4.0-fold to 8.4-fold higher than that in a dark space, and the typical electron temperatures in a dark space and an anode flare were 1.8x103 and 1.0x104 K, respectively. The electron temperature of the anode flare agreed well with the theoretical value of a positive column in steady glow discharge